9820321

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1571}}^1$

素因数の和:1644

約数の個数: 16

約数和(自身を含む): 12072960

約数和(自身を除く): 2252639

約数列:

[1, 7, 19, 47, 133, 329, 893, 1571, 6251, 10997, 29849, 73837, 208943, 516859, 1402903, 9820321]

約数ペア:

[(1, 9820321), (7, 1402903), (19, 516859), (47, 208943), (133, 73837), (329, 29849), (893, 10997), (1571, 6251)]